Mortgage estimates with context
Each calculator is built for scenario planning and paired with guides that explain the assumptions behind the result.
Mortgage math without the fog
Run the numbers before the loan officer does.
Mortgage Calculators Now helps home buyers and homeowners compare payments, affordability, refinance timing, extra payments, and buy-vs-rent assumptions before relying on a lender quote or closing document.
Plain-English decision support
Use the tools to compare payments, DTI, PMI, escrow, refinance costs, payoff speed, and local appreciation assumptions.
Educational, not a loan quote
Results are estimates for planning. Always verify final numbers with lenders, tax offices, insurance agents, and closing documents.
Decision helpers
What the calculators are really telling you
Monthly payment
Principal and interest are only part of the cost. Taxes, insurance, mortgage insurance, and HOA dues can move the practical payment by hundreds of dollars.
Affordability
A lender may approve more than a household wants to carry. Compare the payment with savings, repairs, commuting, childcare, and the budget you need to keep breathing room.
Refinancing
A lower rate is useful only when the monthly savings and time in the home justify the closing costs and any term reset.
Related tools
Keep the mortgage number connected to the rest of the decision.
More calculators
Tools for escrow, refinancing, and closing day
Escrow shortage
Escrow shortage calculator
See your new escrow payment after a tax or insurance increase, and what changes once the shortage is repaid.
Refinance payment change Refinance payment change calculatorCompare your payment before and after a refinance with closing costs, points, cash out, PMI, and escrow.
Closing cost split Buyer vs. seller closing cost calculatorSplit closing costs line by line, prorate property taxes, and see cash to close and seller net proceeds.
Mortgage guide
Quick answers before you compare loans
Payment basics
How mortgage payments are calculated
See how principal, interest, taxes, insurance, PMI, and amortization combine into the payment.
Mortgage insurance PMI explainedUnderstand why PMI appears, who it protects, and when it may be removed.
Escrow costs Property taxes and escrow explainedLearn why taxes and insurance can change the monthly payment even on a fixed-rate loan.
Loan term 15-year vs. 30-year mortgageCompare payment size, interest savings, flexibility, and cash-flow risk.
Refinance math Refinance break-even explainedCalculate whether a lower payment justifies the closing costs and term reset.
Payoff strategy How extra payments reduce interestSee why extra principal payments can shorten the loan and lower future interest.
Qualification metric What DTI ratio meansUse debt-to-income ratio as a lender screen and a household budget warning light.
Cash to close Closing costs by buyer and sellerBreak down borrower-paid costs, seller-paid costs, credits, and the Closing Disclosure.
Budget guardrails Mortgage affordability rules of thumbUse 28/36-style rules carefully alongside reserves, repairs, and real cash flow.
Escrow shortages Why did my mortgage payment go up?Why escrow can rise on a fixed-rate loan, how shortages are repaid, and how to shrink the next increase.
Long-term tradeoff Home appreciation vs. mortgage interestCompare scheduled interest with uncertain local appreciation and ownership costs.